StackRadar

CVE-2026-39820

High

Advisory

Published 7 May 2026In the index since 5 Sept 2026
Severity
High
worst across findings
CVSS
7.5
base score, highest
EPSS
0.009
57th percentile
CISA KEV
Not listed
no confirmed exploitation
Charts affected
4,224
of 17,985 indexed, latest versions
Container images
4,756
deployed by those charts
Fix available
1 of 2
affected packages

Quadratic string concatentation in consumeComment in net/mail

Carried by container images the latest versions of 4,224 of 17,985 indexed charts deploy, on 4,756 images.

Affected packageAffected versionsFixed inImages
golang-1.19deb1.19.8-2no fix listed1
stdlibgolanggo1.13, go1.13.1, go1.13.3, go1.13.4+183 more1.25.104,756
OSV records
DEBIAN-CVE-2026-39820GO-2026-4986
Also known as
BIT-golang-2026-39820

Charts affected

4,224 by stars
ChartLatestAffected imagesRadar Score
calibre-web-automatedcalibre-web-automated1.0.01 of 1See more

calibre-web-automated calibre-web-automated 1.0.0

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
crocodilestick/calibre-web-automated:v4.0.6c31a738b6d5e
stdlib@go1.17.8
1.25.10

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7,112
ct-singlecalltelemetry0.8.44 of 7See more

ct-single calltelemetry 0.8.4

4 of the 7 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
library/nats:2.8.4-alpine988010f74b61
stdlib@go1.17.10
1.25.10
natsio/nats-box:0.11.09fbf7bf684e4
stdlib@go1.18.1
1.25.10
natsio/nats-server-config-reloader:0.7.2911ce7ed2f55
stdlib@go1.19
1.25.10
natsio/prometheus-nats-exporter:0.10.016048afb67a5
stdlib@go1.19
1.25.10

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10,984
stablecalltelemetry0.7.14 of 9See more

stable calltelemetry 0.7.1

4 of the 9 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
library/nats:2.8.4-alpine988010f74b61
stdlib@go1.17.10
1.25.10
natsio/nats-box:0.11.09fbf7bf684e4
stdlib@go1.18.1
1.25.10
natsio/nats-server-config-reloader:0.7.2911ce7ed2f55
stdlib@go1.19
1.25.10
natsio/prometheus-nats-exporter:0.10.016048afb67a5
stdlib@go1.19
1.25.10

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7,727
stable-hacalltelemetry0.11.43 of 7See more

stable-ha calltelemetry 0.11.4

3 of the 7 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
library/nats:2.10.12-alpinebca70839d953
stdlib@go1.21.8
1.25.10
natsio/nats-box:0.14.2e808e0644ce1
stdlib@go1.21.5
1.25.10
natsio/nats-server-config-reloader:0.14.10d50270fa374
stdlib@go1.20.5
1.25.10

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4,731
pagescamden-pages1.0.01 of 3See more

pages camden-pages 1.0.0

1 of the 3 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
library/mysql:8.07dcddc01f13b
stdlib@go1.24.6
1.25.10

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20,800
camellia-redis-proxycamellia-redis-proxy1.4.01 of 2See more

camellia-redis-proxy camellia-redis-proxy 1.4.0

1 of the 2 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
library/redis:5.0fc5ecd863862
stdlib@go1.16.7
1.25.10

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8,564
geoservercamptocamp20.0.31 of 12See more

geoserver camptocamp2 0.0.3

1 of the 12 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
library/postgres:122f2a8c2a7d10
stdlib@go1.18.2
1.25.10

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90,924
bucket-clonercamptocamp31.0.41 of 1See more

bucket-cloner camptocamp3 1.0.4

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
camptocamp/bucket-cloner:latestacfafc308d88
stdlib@go1.16.5
1.25.10

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4,797
getconfigcamptocamp30.1.11 of 1See more

getconfig camptocamp3 0.1.1

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
quay.io/oauth2-proxy/oauth2-proxy:v7.3.08c21390be87d
stdlib@go1.17.10
1.25.10

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2,203
prometheus-puppetdb-sdcamptocamp38.0.21 of 2See more

prometheus-puppetdb-sd camptocamp3 8.0.2

1 of the 2 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
ghcr.io/camptocamp/prometheus-puppetdb-sd:0.14.0414c0c99fd06
stdlib@go1.23.5
1.25.10

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6,457
redisoperatorcamptocamp33.0.11 of 1See more

redisoperator camptocamp3 3.0.1

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
quay.io/spotahome/redis-operator:latest8c772955184e
stdlib@go1.20.7
1.25.10

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1,199
s3-exportercamptocamp32.2.01 of 1See more

s3-exporter camptocamp3 2.2.0

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
ribbybibby/s3-exporter:v0.5.0998184c51a00
stdlib@go1.15.15
1.25.10

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1,187
snyk-exportercamptocamp30.1.41 of 1See more

snyk-exporter camptocamp3 0.1.4

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
quay.io/lunarway/snyk_exporter:v1.11.155e5cc5aaa0a
stdlib@go1.17.7
1.25.10

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1,083
ssl-exportercamptocamp30.1.01 of 1See more

ssl-exporter camptocamp3 0.1.0

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
ribbybibby/ssl-exporter:2.4.2718abe7f5e79
stdlib@go1.18.3
1.25.10

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1,628
terraboardcamptocamp32.4.01 of 1See more

terraboard camptocamp3 2.4.0

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
ghcr.io/camptocamp/terraboard:v2.3.0df53e2c8998c
stdlib@go1.21.3
1.25.10

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1,344
mapservercamptocamp-apache0.1.101 of 2See more

mapserver camptocamp-apache 0.1.10

1 of the 2 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
camptocamp/mapserver:master5f9ddd0b9c5b
stdlib@go1.26.2
1.25.10

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2,051
caninecanine0.1.105 of 7See more

canine canine 0.1.10

5 of the 7 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
ghcr.io/caninehq/canine:latest68b19aee1c64
stdlib@go1.24.4
1.25.10
quay.io/jetstack/cert-manager-cainjector:v1.15.3e0ce8ae280c8
stdlib@go1.22.5
1.25.10
quay.io/jetstack/cert-manager-controller:v1.15.3eee34b3de2dd
stdlib@go1.22.5
1.25.10
quay.io/jetstack/cert-manager-startupapicheck:v1.15.34cbc1b022a23
stdlib@go1.22.5
1.25.10
quay.io/jetstack/cert-manager-webhook:v1.15.3fdcb9ac4963f
stdlib@go1.22.5
1.25.10

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14,936
cert-managercanine1.15.34 of 4See more

cert-manager canine 1.15.3

4 of the 4 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
quay.io/jetstack/cert-manager-cainjector:v1.15.3e0ce8ae280c8
stdlib@go1.22.5
1.25.10
quay.io/jetstack/cert-manager-controller:v1.15.3eee34b3de2dd
stdlib@go1.22.5
1.25.10
quay.io/jetstack/cert-manager-startupapicheck:v1.15.34cbc1b022a23
stdlib@go1.22.5
1.25.10
quay.io/jetstack/cert-manager-webhook:v1.15.3fdcb9ac4963f
stdlib@go1.22.5
1.25.10

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2,935
capi2argo-cluster-operatorcapi2argo1.5.01 of 1See more

capi2argo-cluster-operator capi2argo 1.5.0

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
ghcr.io/dntosas/capi2argo-cluster-operator:v1.5.0fb8c6457ef6e
stdlib@go1.25.6
1.25.10

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284
capsule-argo-addoncapsule-argo-addonVerified publisher0.8.01 of 2See more

capsule-argo-addon capsule-argo-addon 0.8.0

1 of the 2 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
clastix/kubectl:v1.3122918a06c253
stdlib@go1.22.5
1.25.10

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1,145
freebox-exportercaptnbpVerified publisher1.0.01 of 1See more

freebox-exporter captnbp 1.0.0

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
captnbp/freebox-exporter:1.0.0-r01600c5a253e0
stdlib@go1.21.3
1.25.10

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723
ranchercarbide-charts2.15.21 of 2See more

rancher carbide-charts 2.15.2

1 of the 2 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
rancher/rancher:v2.15.20c3d8e570255
stdlib@go1.26.1
1.25.10

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1,633
stigatroncarbide-charts0.4.13 of 10See more

stigatron carbide-charts 0.4.1

3 of the 10 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
library/nats:2.10.5-alpine85319e5e541b
stdlib@go1.21.4
1.25.10
natsio/nats-box:0.14.1a67913df95f1
stdlib@go1.21.3
1.25.10
natsio/nats-server-config-reloader:0.13.0b3359eeb10bf
stdlib@go1.20.5
1.25.10

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4,452
pagescarina-pages1.0.01 of 3See more

pages carina-pages 1.0.0

1 of the 3 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
library/mysql:8.07dcddc01f13b
stdlib@go1.24.6
1.25.10

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20,800
pagescarmel-pages-dell1.0.01 of 3See more

pages carmel-pages-dell 1.0.0

1 of the 3 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
library/mysql:8.07dcddc01f13b
stdlib@go1.24.6
1.25.10

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20,800
casdoor-helm-chartscasdoor4.13.01 of 1See more

casdoor-helm-charts casdoor 4.13.0

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
casbin/casdoor:4.13.0758bb52a59dc
stdlib@go1.25.8
1.25.10

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406
cassandra-webcassandra-web0.1.01 of 1See more

cassandra-web cassandra-web 0.1.0

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
ipushc/cassandra-web:latestfa3e0c66c289
stdlib@go1.20.2
1.25.10

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1,297
castai-tetragoncastaiVerified publisher0.6.12 of 4See more

castai-tetragon castai 0.6.1

2 of the 4 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
quay.io/cilium/tetragon-ci:b6f3056a3f6cf05e366a3e07348f7c0b6265a60f5efd991d218b
stdlib@go1.19.2
1.25.10
quay.io/cilium/tetragon-operator:v0.8.34ab8e6604204
stdlib@go1.18.3
1.25.10

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4,166
castware-componentscastaiVerified publisher0.4.01 of 1See more

castware-components castai 0.4.0

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
lachlanevenson/k8s-kubectl:v1.25.4af5cea3f2e40
stdlib@go1.19.3
1.25.10

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3,455
temporalcastaiVerified publisher0.54.210 of 14See more

temporal castai 0.54.2

10 of the 14 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
grafana/grafana:11.0.00dc5a246ab16
stdlib@go1.21.10
1.25.10
temporalio/admin-tools:1.26.237e2e33dbd7b
stdlib@go1.22.5
1.25.10
temporalio/server:1.26.21e2626efcbc1
stdlib@go1.23.2
1.25.10
temporalio/ui:2.33.05c586a3c8ec5
stdlib@go1.23.0
1.25.10
quay.io/prometheus-operator/prometheus-config-reloader:v0.74.0d55631c7a740
stdlib@go1.22.3
1.25.10
quay.io/prometheus/alertmanager:v0.27.0e13b6ed5cb92
stdlib@go1.21.7
1.25.10
quay.io/prometheus/node-exporter:v1.8.1fa7fa12a57ef
stdlib@go1.22.3
1.25.10
quay.io/prometheus/prometheus:v2.53.0075b1ba2c4eb
stdlib@go1.22.4
1.25.10
quay.io/prometheus/pushgateway:v1.8.0c159e946abf4
stdlib@go1.22.1
1.25.10
registry.k8s.io/kube-state-metrics/kube-state-metrics:v2.12.0b401fae262a5
stdlib@go1.21.8
1.25.10

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16,380
catalyst-agentscatalyst-agents0.1.346 of 18See more

catalyst-agents catalyst-agents 0.1.34

6 of the 18 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
alpine/k8s:1.32.3eec354133193
stdlib@go1.23.6
1.25.10
grafana/loki:3.0.0757b5fadf816
stdlib@go1.21.9
1.25.10
grafana/loki-canary:3.0.028d7c00588aa
stdlib@go1.21.9
1.25.10
grafana/tempo:2.5.0f0200a9bff6d
stdlib@go1.21.3
1.25.10
prom/memcached-exporter:v0.14.2d8a61419b841
stdlib@go1.21.5
1.25.10
ghcr.io/chaos-mesh/chaos-coredns:v0.2.838bfdf5e3774
stdlib@go1.25.5
1.25.10

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18,481
mongodb-operatorccowleyVerified publisher0.1.11 of 1See more

mongodb-operator ccowley 0.1.1

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
quay.io/mongodb/mongodb-kubernetes-operator:0.3.0107a7c73af59
stdlib@go1.14.10
1.25.10

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6,471
openldapccowleyVerified publisher2.0.41 of 3See more

openldap ccowley 2.0.4

1 of the 3 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
osixia/openldap:1.4.0ccd95cc6e61e
stdlib@go1.13.4
1.25.10

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6,229
openldap_exporterccowleyVerified publisher0.1.01 of 1See more

openldap_exporter ccowley 0.1.0

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
quay.io/chriscowley/openldap_exporter:v2.1.16c308e9732e1
stdlib@go1.15.7
1.25.10

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2,148
kube-ceemsceemsOfficialVerified publisher1.43.01 of 5See more

kube-ceems ceems 1.43.0

1 of the 5 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
grafana/grafana:13.2.2-distroless69a5d2d957ca
stdlib@go1.25.7
1.25.10

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602
cerberuscerberusVerified publisher0.18.01 of 1See more

cerberus cerberus 0.18.0

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
ghcr.io/tsouza/cerberus:1.22.0d181d9145aac
stdlib@go1.26.2
1.25.10

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158
cert-manager-alidns-webhookcert-manager-alidns-webhook0.1.41 of 1See more

cert-manager-alidns-webhook cert-manager-alidns-webhook 0.1.4

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
ghcr.io/crazygit/cert-manager-alidns-webhook:0.1.4976be6506eb6
stdlib@go1.25.3
1.25.10

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1,369
cert-manager-desec-webhookcert-manager-desec-webhook1.0.11 of 1See more

cert-manager-desec-webhook cert-manager-desec-webhook 1.0.1

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
ghcr.io/luzifer/cert-manager-desec-webhook:v1.0.1fa1f6b2e9a6e
stdlib@go1.23.4
1.25.10

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1,539
cert-manager-webhook-abioncert-manager-webhook-abion1.3.21 of 1See more

cert-manager-webhook-abion cert-manager-webhook-abion 1.3.2

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
abiondevelopment/cert-manager-webhook-abion:latestc741988fbd23
stdlib@go1.25.1
1.25.10

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1,359
cert-manager-webhook-bunnycert-manager-webhook-bunnyVerified publisher1.0.21 of 1See more

cert-manager-webhook-bunny cert-manager-webhook-bunny 1.0.2

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
ghcr.io/o0th/cert-manager-webhook-bunny:1.0.2fe7ce555a12d
stdlib@go1.23.5
1.25.10

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849
cert-manager-webhook-civocert-manager-webhook-civoVerified publisher0.0.0-05b683cb6efdc99135f68af18007954e74f184041 of 1See more

cert-manager-webhook-civo cert-manager-webhook-civo 0.0.0-05b683cb6efdc99135f68af18007954e74f18404

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
okteto/civo-webhook:0.5.357cd51176538
stdlib@go1.21.3
1.25.10

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1,293
cert-manager-webhook-infoblox-wapicert-manager-webhook-infoblox-wapiVerified publisher1.5.21 of 1See more

cert-manager-webhook-infoblox-wapi cert-manager-webhook-infoblox-wapi 1.5.2

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
ghcr.io/luisico/cert-manager-webhook-infoblox-wapi:1.5ded797477896
stdlib@go1.16.15
1.25.10

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2,355
cert-manager-webhook-namecheapcert-manager-webhook-namecheap0.1.21 of 1See more

cert-manager-webhook-namecheap cert-manager-webhook-namecheap 0.1.2

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
ghcr.io/extrality/cert-manager-webhook-namecheap:lateste3552fa0c68a
stdlib@go1.20.6
1.25.10

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1,773
cert-manager-webhook-pdnscert-manager-webhook-pdns3.2.51 of 1See more

cert-manager-webhook-pdns cert-manager-webhook-pdns 3.2.5

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
zachomedia/cert-manager-webhook-pdns:v2.5.54940e227a39b
stdlib@go1.26.1
1.25.10

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1,114
cert-manager-webhook-regerycert-manager-webhook-regery1.0.01 of 1See more

cert-manager-webhook-regery cert-manager-webhook-regery 1.0.0

1 of the 1 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
darioackermann/cert-manager-webhook-regery:latest0d450bc4acc4
stdlib@go1.22.10
1.25.10

Open the chart page →

903
cert-utils-operatorcert-utils-operator1.3.122 of 2See more

cert-utils-operator cert-utils-operator 1.3.12

2 of the 2 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
quay.io/redhat-cop/cert-utils-operator:v1.3.120290e7b2800a
stdlib@go1.19.13
1.25.10
quay.io/redhat-cop/kube-rbac-proxy:v0.11.0c68135620167
stdlib@go1.15.15
1.25.10

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7,882
getoutlinecfi20171.2.01 of 4See more

getoutline cfi2017 1.2.0

1 of the 4 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
library/postgres:18.06f3e42ad37de
stdlib@go1.24.6
1.25.10

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4,982
opencvecfi20170.1.23 of 7See more

opencve cfi2017 0.1.2

3 of the 7 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
library/postgres:18.06f3e42ad37de
stdlib@go1.24.6
1.25.10
prom/statsd-exporter:v0.28.04e7a1f00b9b2
stdlib@go1.23.2
1.25.10
ghcr.io/cfi2017/opencve-scheduler:3.0.08d943799621b
stdlib@go1.22.10
1.25.10

Open the chart page →

17,006
clechaosnative0.2.73 of 6See more

cle chaosnative 0.2.7

3 of the 6 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
chaosnative/cle-auth-server:2.7.072ee352bc333
stdlib@go1.16.15
1.25.10
chaosnative/cle-license-module:2.7.062cf6adc355e
stdlib@go1.16.15
1.25.10
chaosnative/cle-server:2.7.0e7bcff4a20c0
stdlib@go1.16.15
1.25.10

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16,625
charon-relaycharonOfficialVerified publisher0.8.02 of 2See more

charon-relay charon 0.8.0

2 of the 2 container images this version deploys carry CVE-2026-39820.

Container imageDigestPackageFixed in
alpine/kubectl:1.35.2ec8f734b0a10
stdlib@go1.25.7
1.25.10
obolnetwork/charon:v1.10.0278c7e2897b6
stdlib@go1.26.1
1.25.10

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4,872

Container images carrying it

4,756 by charts deploying them

A fixed version is listed for 1 of the 2 affected packages.

Container imageDigestPackageFixed inUsed by
registry.k8s.io/sig-storage/objectstorage-sidecar:v0.2.2c7166a73a303
stdlib@go1.24.11
1.25.10
1
registry.k8s.io/sig-storage/snapshot-controller:v8.2.1472fa35a89da
stdlib@go1.23.6
1.25.10
1
registry.k8s.io/sig-storage/snapshot-controller:v4.2.195587f8777d7
stdlib@go1.16.2
1.25.10
1
registry.k8s.io/sig-storage/snapshot-controller:v6.2.198bab4eaf23c
stdlib@go1.19
1.25.10
1
registry.k8s.io/sig-storage/snapshot-controller:v6.3.1ce6ca3c0e30b
stdlib@go1.20.5
1.25.10
1
registry.k8s.io/sig-storage/volume-data-source-validator:v1.0.0d35884236461
stdlib@go1.17.3
1.25.10
1

syft 1.42.1 · advisories as of 2 Oct 2026

Corrections: contact@stackradar.io

Catalogue: Artifact Hub · Advisories: OSV · Exploitation: FIRST EPSS, CISA KEV.